Hi is there any way to enable verbose logging for cloud init rancher-users #elemental

Title

worried-monkey-96416

05/17/2022, 1:26 PM

Hi, is there any way to enable verbose logging for cloud-init during the boot process to see what sections have actually been executed (passed

if

statements) from files in

/system/oem

and

/usr/local/cloud-config

and in what order?

ripe-mechanic-63260

05/18/2022, 10:48 AM

You can export

LOGLEVEL=debug

to see xtra debugging for yip

I wonder if we should just enable it by default, as it ends in the journal anyway

worried-monkey-96416

05/19/2022, 12:53 PM

I'm playing with the Alpine flavor so I wonder if the journal is preserved when switched from systemd in initrd to openrc init system on the real root. Even if so, it might be a challenge to explore journald logs on Alpine.

You can export
LOGLEVEL=debug
to see xtra debugging for yip

Where do you mean to export it?

ripe-mechanic-63260

05/19/2022, 12:55 PM

mmmh, I dont know how the alpine runs the cos-setup-X services which are the ones running the cloud-configs stored in the system

in any case, the logs should be sent to stdout, so the equivalent for openrc should allow tyou to see them

and for exporting, it should be done just before

elemental run-stage

commands are done

worried-monkey-96416

05/19/2022, 2:09 PM

I guess there is no straightforward way for doing this for

initramfs

and

rootfs

stages (

cos-setup-initramfs

and

cos-setup-rootfs

systemd services) which are executed in initrd. So initrd needs to be rebuilt to pass custom env vars to these units

I can't see any hooks here in systemd unit: https://github.com/rancher-sandbox/cOS-toolkit/blob/master/packages/cos-setup/cos-setup-initramfs.service I hoped that

elemental

itself supports different log levels controlled e.g. with cmdline args

ripe-mechanic-63260

05/19/2022, 2:12 PM

well, elemental uses the yip lib underneath to run the cloud-config stuff, so that is itws own thing

but maybe we should hook up the LOGLEVEL=true to our debug flag so it reports everything

you could also once booted, run

LOGLEVEL=true elemental run-stage "STAGE"

so it re-runs those stages

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